The result shows that the effective swinging of left leg is insufficient and extending strength of right leg is not good at the stage of sliding.
结果表明：我国优秀女子铅球运动员在滑步阶段，左腿有效摆动不足， 右腿蹬伸力量、速度不佳。
2
Because the missile does not have establishing or controlling surfaces, it completely relies on the swinging nozzles of its first stage engine to maintain its course of flight.
因为导弹没有稳定或控制翼面，它完全地依靠在第一级发动机的摆动喷嘴去维持它的飞行航线。
3
Swinging mechanical conveyor belt can be moved from the stage of the transportation work.